A matched pair that calculates the temperature difference between supply and return.
is the current Russian national standard for heat meters used in water-based heating systems. It establishes technical requirements for the accuracy, design, and testing of devices that measure thermal energy. Key Technical Specifications gost r 51649 2017 skachat pdf
Provides English translations and official Russian texts for industrial standards. A matched pair that calculates the temperature difference
Requires meters to store, display, and transmit measurement results for historical tracking. Accessing the Full Text Meters must meet specific accuracy classes (typically Class
A common repository for technical regulations and GOST documents.
Meters must meet specific accuracy classes (typically Class 2 for billing) to ensure fair commercial accounting. Measurement Ranges: Defines nominal flow ( Qpcap Q sub p ), minimum flow ( Qicap Q sub i ), and maximum flow ( Qscap Q sub s ) thresholds.
Specifies how devices must perform under various pressures (PN) and temperatures.